package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.dto.DishDto;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Dish;
import com.itheima.reggie.entity.DishFlavor;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.DishFlavorService;
import com.itheima.reggie.service.DishService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.stream.Collectors;


/**
 * @author ViTe
 * @create 2022/12/21 - 15:34
 */

@Slf4j
@RestController
@RequestMapping("/dish")

public class DishController {
    @Autowired
    private DishService dishService;

    @Autowired
    private DishFlavorService dishFlavorService;

    @Autowired
    private CategoryService categoryService;
    /**
     * 添加菜品信息
     * @Param dishDto
     * @return
     */

    @PostMapping
    public R<String> save(@RequestBody DishDto dishDto) {

        dishService.saveWithFlavor(dishDto);
        return R.success("菜品添加成功");
    }
    /**
     * 菜品信息分页查询
     * @Param page
     * @Param pageSize
     * @Param name
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name) {

        // 构造分页构造器对象
        Page<Dish> pageInfo = new Page<>(page, pageSize);
        Page<DishDto> dishDtoPage = new Page<>();

        // 条件构造器
        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();

        // 添加过滤条件
        queryWrapper.like(name != null, Dish::getName, name);

        // 添加排序条件
        queryWrapper.orderByDesc(Dish::getUpdateTime);

        // 执行分页查询
        dishService.page(pageInfo, queryWrapper);

        // 对象拷贝
        BeanUtils.copyProperties(pageInfo, dishDtoPage, "records");

        List<Dish> records = pageInfo.getRecords();
        List<DishDto> list = records.stream().map((item) -> {
            DishDto dishDto = new DishDto();

            // 分类 id
            BeanUtils.copyProperties(item, dishDto);

            // 根据 id 查询分类对象
            Long categoryId = item.getCategoryId();
            if (categoryId != null) {
                Category category = categoryService.getById(categoryId);
                String categoryName = category.getName();

                dishDto.setCategoryName(categoryName);
            }

            return dishDto;
        }).collect(Collectors.toList());

        dishDtoPage.setRecords(list);

        return R.success(dishDtoPage);

    }

    /**
     * 根据 id 查询菜品信息和对应口味信息
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    public R<DishDto> get(@PathVariable Long id) {

        DishDto dishDto = dishService.getByIdWithFlavor(id);

        return R.success(dishDto);
    }

    @PutMapping
    public R<String> update(@RequestBody DishDto dishDto) {
        dishService.updateWithFlavor(dishDto);
        return R.success("修改菜品成功");

    }

    /**
     *
     * @param dish
     * @return
     */
    @GetMapping("/list")
    public R<List<DishDto>> list(Dish dish) {

        // 构造查询条件对象
        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(dish.getCategoryId() != null, Dish::getCategoryId, dish.getCategoryId());

        // 添加条件 查询状态为 1 （起售状态）菜品
        queryWrapper.eq(Dish::getStatus, 1);

        //添加排序条件
        queryWrapper.orderByAsc(Dish::getSort).orderByDesc(Dish::getUpdateTime);

        List<Dish> list = dishService.list(queryWrapper);

        List<DishDto> list2 = list.stream().map((item) -> {
            DishDto dishDto = new DishDto();

            // 分类 id
            BeanUtils.copyProperties(item, dishDto);

            // 根据 id 查询分类对象
            Long categoryId = item.getCategoryId();
            if (categoryId != null) {
                Category category = categoryService.getById(categoryId);
                String categoryName = category.getName();

                dishDto.setCategoryName(categoryName);
            }
            Long dishId = item.getId();
            LambdaQueryWrapper<DishFlavor> lambdaQueryWrapper = new LambdaQueryWrapper<>();
            lambdaQueryWrapper.eq(DishFlavor::getDishId, dishId);
            List<DishFlavor> list1 = dishFlavorService.list(lambdaQueryWrapper);
            dishDto.setFlavors(list1);
            return dishDto;
        }).collect(Collectors.toList());

        return R.success(list2);
    }

    /**
     * 商品状态更改
     * @param ids
     * @return
     */
    @PostMapping("/status/0")
    public R <String> modify0(@RequestParam List<Long> ids) {
        log.info("dish: {}", ids);
        dishService.updateStatus(ids, 0);
        return R.success("状态更改成功");
    }

    @PostMapping("/status/1")
    public R <String> modify1(@RequestParam List<Long> ids) {
        log.info("dish: {}", ids);
        dishService.updateStatus(ids, 1);
        return R.success("状态更改成功");
    }

    /**
     * 删除菜品
     * @param ids
     * @return
     */
    @DeleteMapping
    public R<String> remove(@RequestParam List<Long> ids) {

        dishService.remove(ids);

        return R.success("菜品删除成功");
    }


}
